Induction of knowledge points in the first volume of senior one mathematics
Unit 1: preview class
1, count.
Count: when counting, count in a certain order, starting from 1 and counting until the number corresponding to the last object, that is, the last count, which is the total number of such objects.
2. What is the ratio?
Same number: when two objects correspond to each other one by one and there is no surplus, it is said that the number of these two objects is the same.
Ratio: when two objects are in one-to-one correspondence, one of them has surplus, and there is more surplus, and there is no surplus.
When comparing the number of two objects, we can use the one-to-one correspondence method.
Unit 2: Location
1.
Understand the meaning of up and down: from the position of two objects: up refers to the high object and down refers to the low object.
2. Knowing the past and knowing the future
Understand the meaning of "before and after": Generally speaking, the facing direction is front, and the facing direction is back.
The same object will also change its positional relationship relative to different reference objects.
From this, it is concluded that when determining the front-back position relationship of more than two objects, it is necessary to find the correct reference object, and the relative front-back position relationship will also change with different reference objects.
3. Know the left and right.
Determine the left and right sides according to the positions of your left and right hands. The side where the right hand is located is the right, and the side where the left hand is located is the left.
Important note: When determining the left and right, except for special requirements, the observer's left and right shall generally prevail.
Learning methods of mathematics in grade one.
Create a good atmosphere in the lecture hall
Modern educational theory holds that a good lecture hall atmosphere can be a silent medium to convey common sense, the key to enlighten wisdom and the potential power to cultivate morality. Every teacher knows that the atmosphere in the lecture hall greatly affects the students' learning automaticity. In education, teachers plan students' favorite and emotional learning activities, stimulate students' love for learning, and let students learn mathematics happily; Teachers provide students with rich opportunities to participate in mathematical activities, guide students to acquire mathematical common sense, technology and mathematical thinking methods through independent research and cooperative exchange, and let students experience a vivid, automatic research and distinctive invention process. All this needs an excellent lecture hall atmosphere to support.
Teachers should create a democratic and harmonious learning atmosphere for students. The real democracy and harmony in the lecture hall stems from a teacher-student relationship. The educational process is a two-way process of information exchange between teachers and students, and it is also a process of emotional exchange between teachers and students. Through their own educational activities, teachers moisten students' hearts with love, stimulate students' enthusiasm for learning mathematics, and make them actively participate in learning activities automatically. Take the lesson "Knowing 0 and Related Addition and Subtraction" as an example. In the activity of writing 0, the teacher used these words "Do you want to write 0?" Ok, hold out your little hand and look at the blank screen book. Draw a line of 0 in the Japanese word box. What do you think should be paid attention to when writing 0? "What do you want to say to the children in our class?" "The teacher thinks that your 0 must be beautifully written, so start writing a few 0 s in the Japanese word box below! "Arrange students to carry out activities such as book blank, drawing, summary writing and independent writing.
The teacher's words are permeated with understanding, respect and trust for students, and they are deeply concerned about students, so that students can get the method of writing 0 happily and automatically. In the process of learning common sense, when students make mistakes, don't criticize them, but give them another chance. For example, ask students to say, "How many peaches are marked on the plate/kloc-0?" At this time, the reply "Little monkey ate 1 peach, marked 1" appeared. The teacher didn't worry, then asked, "How many peaches are there in that plate?" The child immediately said, "It's marked 1." How many frogs are there on two lotus leaves? When one student says 4-0, other students are eager to express their own equation 4+0 or 0+4.
At this time, the teacher gave the students a chance to correct themselves and asked them to say it again on the grounds that "the teacher didn't hear clearly". Wonderful has won students the opportunity to understand success. "Give students another chance" makes them feel warm and encouraged, keep their love for learning, and keep their enthusiasm for learning and learning common sense. In a democratic, relaxed and harmonious educational atmosphere, students feel comfortable, have vivid thoughts, dare to think, dare to feel and dare to speak, and their learning potential and automaticity are fully brought into play.
Learning methods and skills of mathematics in the first grade of primary school
First of all, listen to the teacher carefully. This is the main reason why I got good grades. Listen attentively, follow the teacher's thinking, don't be distracted, and don't listen at the same time. Secondly, we should pay attention to every word the teacher says, because mathematics is famous for its rigor, and there are serious differences between words, and there are infinite mysteries hidden between words. Pay attention to taking notes when listening to the lecture. Once the teacher talked about a difficult geometry problem, which I didn't understand at the moment. Fortunately, I wrote down the problem and the solution, thought it over carefully when I got home, and finally understood it thoroughly, so that I easily solved a similar problem in a competition and got a valuable score of 10. Raise your hand to speak actively in class. The benefits of raising your hand are really many! (1) can consolidate the knowledge learned in class. (2) Exercise your eloquence. Those vague ideas and mistakes can be taught by teachers. It's killing three birds with one stone. In short, listening should be done with hands, mouth, eyes, ears and heart.
Second, extracurricular exercises. Confucius said, "Learn from time to time". Homework after class is also an important part of learning and consolidating mathematics. I pay great attention to the accuracy and speed of solving problems. Accuracy means accuracy, concentrate on completing your homework independently, strive to be accurate once, and correct any mistakes in time. And speed is to exercise your concentration and sense of urgency. I often do this. I set the alarm clock at the beginning of my homework and put it out of sight, which helps to improve the speed of my homework. I won't be nervous during the exam, and I won't lose sight of one thing.
Third, review and preview. For the review of mathematics, I intend to preview it every night. After finishing my homework that day, I will briefly look at the new knowledge I will learn the next day, and then recall what the teacher said. When I sleep in bed, I will "watch" the teacher's class in my mind like watching a movie. If there is any problem, I will get up and look at it immediately until I understand it. Every Sunday, I will also summarize, review and preview the week's homework. This is good for learning mathematics. If you master it firmly, you won't forget it.
Fourth, improve. After finishing my homework, previewing and reviewing, I will do some rock climbing problems. Doing this kind of problem, thinking independently as much as possible and trying to find out the hidden conditions are the key to solving the problem. If you really can't think of it, you need to look at the reference books and consult your teachers and classmates. In short, seeing more, doing more, asking more questions, being open-minded, diligent and keeping a positive spirit are the key.
Hebei education publishing house first-grade elementary school mathematics knowledge articles;
★ First-year mathematics knowledge points Hebei Education Edition
★ Hebei Education Edition Primary School Grade One Final Mathematics Examination Paper
★ Hebei Education Edition Primary School Grade One Final Mathematics Examination Paper
★ Hebei Education Edition Primary School Grade One Mathematics Teaching Plan
★ Reflections on the Mathematics Teaching in the First Grade of Primary School in Hebei Education Press
★ Hebei Education Edition Grade One Mathematics Unit 2 Exercise
★ Hebei Education Edition Grade One Volume II Math Exercise
★ Hebei Education Edition Senior One Mathematics Examination Paper
★ Hebei Education Edition Senior One Mathematics Volume II Review Plan
★ Hebei Education Press Grade One Mathematics Volume II Teaching Plan (2)